Gangnam Style meets Hammer Time

EVO - The biggest stars in music gathered at the LA Live complex in downtown Los Angeles Sunday (November 18) for the 40th Annual American MusicAwards, which touts awe-inspiring performances as one of its biggest draws.

Korean rapper Psy didn't score any nominations, but he was named the AMA new media honoree for his viral hit music video "Gangnam Style", accompanied by his trademark horse-riding dance.

The star closed out the show with his hit song, joined by surprise guest MC Hammer, one of the pioneering rappers from the 1980s, who was known for his catch phrase "Hammer Time".